POLYETHERESTERS AND THEIR APPLICATION FOR THE MANUFACTURE OF HARD POLYURETHANE FOAM

摘要

The invention relates to polyol components b) containing: between 20 and 40 wt. % of polyether ester polyols B) with a functionality of between 3.8 and 4.8, an OH number of between 380 and 440 mg KOH/g and a fatty acid and/or fatty acid ester content of between 8 and 7 wt. %, in relation to the weight of the polyether ester polyols B); betwen 20 and 40 wt. % of polyether polyols C) with a functionality of between 3.7 and 4 and an OH number of between 300 and 420 mg KOH/g; between 20 and 40 wt. % of polyether polyols D) with a functionality of between 4.5 and 6.5 and an OH number of between 400 and 520 mg KOH/g; and between 0.5 and 5.5 wt. % of catalysts E), between 0.1 and 5 wt. % of other auxiliary agents and/or additives F), and between 0.5 and 5 wt. % of water G). The invention also relates to polyurethane rigid foam materials produced therefrom and to the use thereof for insulation and cooling applications.